Flexibility Eno et al. (1996) found that the tall sea pen bends away from lobster creels dropped on of them in a passive response to the pressure wave travelling ahead of the pot.

Associated species The deep-water brittlestar, Asteronyx loveni, which has been recorded sporadically from the west coast of Scotland (Hughes, 1998b), is known to use its arms to cling to Funiculina quadrangularis (Fujita & Ohta, 1988).